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