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