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