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