One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,4,6)(3,7,8,5)(10,12)(11,15)(19,23)(21,24)(25,26,28,30)(27,29,31,32)(1,2)(3,5)(4,6)(7,8)(9,10,13,12)(11,14,15,16)(27,31)(29,32)(1,2,4,6)(3,5,8,7)(9,10,13,12)(11,16,15,14)(17,18,20,22)(19,21,23,24)(25,27,28,31)(26,29,30,32)(1,2)(3,5)(4,6)(7,8)(9,11,13,15)(10,14,12,16)(17,19)(18,21)(20,23)(22,24)(25,26)(27,29)(28,30)(31,32)(1,3,4,8)(2,5,6,7)(9,12,13,10)(11,16,15,14)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.