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