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