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