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