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