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