Disclaimer: I don't know where you go to school and I am not well versed on muslim culture or appropriate dress.
That being said, an outfit like this would be acceptable where I went to school and help out at for recruitment:
http://www.anntaylor.com/catalog/out...urrentPageNo=2
I understand that the sleeveless-ness of the top may not work, but even if this was done with a fully sleeved shirt, and accessorized properly would look fantastic!