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