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