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