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