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