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