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