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