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