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