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