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