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