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