One vertex per element, one color per generator, with an edge from x to x·s.
(2,5)(3,7)(9,10,14,12)(11,15,13,16)(17,18,22,23)(19,20,26,24)(21,25,30,31)(27,28,29,32)(1,2,4,5)(3,6,7,8)(9,11,14,13)(10,15,12,16)(18,23)(19,26)(25,31)(27,29)(1,2)(3,6)(4,5)(7,8)(9,11,14,13)(10,16,12,15)(18,23)(20,24)(25,31)(28,32)(1,2)(3,6)(4,5)(7,8)(9,12,14,10)(11,15,13,16)(17,19)(18,24)(20,23)(21,29)(22,26)(25,28)(27,30)(31,32)(1,3,4,7)(2,6,5,8)(9,13,14,11)(10,15,12,16)(17,20,22,24)(18,19,23,26)(21,28,30,32)(25,27,31,29)(17,21,22,30)(18,25,23,31)(19,27,26,29)(20,28,24,32)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.