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