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