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