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