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