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