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