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