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