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