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