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