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