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