You have several things to think about.

First off, you would probably like the photos to closely match what the photos of the other students look like, so pay attention to the background, the pose, and the lighting angle in the other photos.

Secondly, you have to "take out" the effects of the fluorescent lighting if you do use the room you mentioned. Fluorescent light is very hard to white balance, it's ugly and it also flickers potentially creating color casts as mentioned above. If you can, turn off those lights. If not you can use the shutter speed to reduce the impact. (See second last point below.)

Thirdly, you don't need two flashes. You can use the 430 EX II that you have, but you'll want to use your 60D with the 430 EX II in wireless flash mode. (Refer to page 139 of the Canon 60D of the Instruction Manual.) I would mount the flash on a stand and shoot into an umbrella, placing it 45 degrees to the left (or right) and above the subject. Then I would place a white reflector (it could be a large sheet of white paper or bristol board or foam core) on the opposite side of the flash next to the subject.

Next, I would bring both lenses. If you can use the 50mm, great, however, without knowing the dimensions of the room, the flexibility of the 24-105mm may be required.

As for shutter speed and aperture, I would put the camera in manual ('M') mode and use a shutter speed of 1/250 to take out the effects of the fluorescent lights if you can't shut them off. If you can turn them off you can use shutter speeds of 1/250 or slower to have some control the lightness/ darkness of the background. I would start with an aperture of f/4-5.6, but the choice depends on the background (plain vs busy). The E-TTL between the camera and flash will take care of the flash output for you.

Finally, test, test, test with a volunteer subject, before you do the shoot.