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