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