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