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