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