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