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