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