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