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