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