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