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