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