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