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