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