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