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