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