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