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