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