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)(19,26)(20,24)(21,30)(22,25)(23,29)(27,32)(28,31)(2,7)(3,4)(9,11,12,15)(10,13,14,16)(17,19)(18,23)(20,27)(21,28)(22,29)(24,31)(25,26)(30,32)(1,3,6,4)(2,8,7,5)(9,10)(11,13)(12,14)(15,16)(17,20,22,21)(18,24,25,30)(19,27,29,28)(23,31,26,32)(1,4,6,3)(2,5,7,8)(9,11)(10,13)(12,15)(14,16)(17,21,22,20)(18,24,25,30)(19,28,29,27)(23,31,26,32)(1,5)(2,3)(4,7)(6,8)(9,10)(11,13)(12,14)(15,16)(17,19)(18,23)(20,27)(21,28)(22,29)(24,31)(25,26)(30,32) involution — undirected(17,18)(19,23)(20,24)(21,30)(22,25)(26,29)(27,31)(28,32) 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.