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