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