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