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