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