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