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