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