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