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