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