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