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)(19,24)(20,28)(21,25)(22,27)(23,29)(26,31)(30,32)(3,8)(5,6)(9,10)(11,12)(13,15)(14,16)(17,19)(18,22)(20,26)(21,27)(23,31)(24,25)(28,32)(29,30) involution — undirected(1,3)(2,5)(4,8)(6,7)(9,11,13,16)(10,14,15,12)(20,29)(23,28)(26,30)(31,32)(3,8)(5,6)(11,16)(12,14)(17,20,21,29)(18,23,25,28)(19,26,27,30)(22,31,24,32)(1,3)(2,6)(4,8)(5,7)(9,12)(10,11)(13,14)(15,16)(17,19)(18,24)(20,30)(21,27)(22,25)(23,31)(26,29)(28,32) involution — undirected(1,2)(3,5)(4,7)(6,8)(9,10)(11,14)(12,16)(13,15)(17,18)(19,22)(20,23)(21,25)(24,27)(26,31)(28,29)(30,32) 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.