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