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