An interactive google-map here to help you to move around CERN premises and find your way easily with your smartphone :
http://goo.gl/WNSa6P
Please check the Geneva public transport (TPG) timetable before travelling:
http://www.tpg.ch/en/web/site-international
CERN transportation
CERN shuttle to and from the airport http://smb-dep.web.cern.ch/sites/smb-dep.web.cern.ch/files/documents/Shuttle/L4-GVAAirport.pdf
Public transport
Free tickets for public transport can be printed from ticket machines located at the exits from the baggage claim area.
This ticket entitles you