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