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