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