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