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