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)(11,15,16,13)(18,22)(23,29)(24,25)(30,31)(2,5)(6,8)(9,11,12,16)(10,13,14,15)(17,18,20,22)(19,23,26,29)(21,24,28,25)(27,31,32,30)(1,3,4,7)(2,6,5,8)(10,14)(11,16)(17,19)(18,23)(20,26)(21,27)(22,29)(24,31)(25,30)(28,32)(10,14)(13,15)(18,24)(19,26)(21,28)(22,25)(23,30)(29,31) involution — undirected(2,5)(6,8)(10,14)(13,15)(19,26)(23,29)(27,32)(30,31) 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.