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