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