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