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