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