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