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