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