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