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