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