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