Mount Buffalo has some of the best granite climbing in Australia including world class multi day "aid" climbs on the famous "North Wall".
There are numerous climbing areas scattered around the plateau and having a whole crag for your groups personal use is common
OVERVIEW OF CLIMBING AT BUFFALO
An excellent overview of the climbing areas available at Buffalo is to be found at: http://www.chockstone.org/MtBuffalo/MtBuffalo.htm
There are a number guide books for the Mountain, most of which can be purchaced at outdoor shops that stock climbing equipment. To view some of the guide book options see: http://vicclimb.org.au/guides/
There is also a downloadable guide for first time climbers at: http://vicclimb.org.au/wp-content/uploads/2016/02/bufftiV2_2014-01.pdf
GUIDED CLIMBING TOURS AND INSTRUCTION
There are a number of licensed tour operators that run climbing tours and tuition. See tour operators in the drop down menu