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