The Freethought Student Alliance, a coalition of Australian atheist, skeptic, humanist & secular campus groups, would be in the best position to help with that. They regularly receive grants from the Atheist Foundation of Australia to help them with their work.
Some other sites worth looking at would be:
- Freethought Student Alliance Facebook Page
- Secular Student Alliance (US based)
- Center for Inquiry – On Campus (US based)
- International Humanist Ethical Youth Organization (International)
Look on Facebook in particular for existing atheist, secular and skeptic student groups, as many of them are happy to let other groups join to network and share ideas. You may also like to check out Young Australian Skeptics and their podcast for some more inspiration.