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