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