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