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