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