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