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