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