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