International Studies is pretty broad - does she know how she want to use her new degree? Deciding how she wants to apply that will help the community here respond.
If she's wanting to work internationally, idealist is a good place to start to get an idea of the types of jobs available. I work overseas and write about applying your skills to have an impact at Adventures in Impact.com.
Hope that helps. If possible, give us more detail and you'll get more responses. Best of luck to her!