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