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