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