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