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