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