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