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