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