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