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