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