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