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