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