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