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