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