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