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