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