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