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