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