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