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