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