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)(17,18,21,26,22,25,20,30)(19,27,28,23,29,24,31,32)(1,3)(2,6)(4,12)(5,11)(7,14)(8,16)(9,15)(10,13)(17,19)(18,23)(20,31)(21,28)(22,29)(24,26)(25,32)(27,30) involution — undirected(4,13)(8,15)(9,16)(10,12)(17,19)(18,24)(20,28)(21,31)(22,29)(23,26)(25,27)(30,32) involution — undirected(2,7)(6,14)(8,15)(9,16)(18,25)(23,32)(24,27)(26,30) 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.