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