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