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