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)(19,24)(20,29)(21,25)(22,31)(23,27)(26,30)(28,32)(1,3,5,4)(2,6,8,7)(9,10,13,14)(11,16,12,15)(17,19,21,27)(18,23,25,24)(20,30,28,22)(26,29,31,32)(9,11,13,12)(10,15,14,16)(17,20,22,19,21,28,30,27)(18,24,26,29,25,23,31,32)(9,11,13,12)(10,16,14,15)(17,20,22,19,21,28,30,27)(18,24,26,29,25,23,31,32)(1,4,5,3)(2,7,8,6)(9,12,13,11)(10,15,14,16)(18,25)(23,24)(26,31)(29,32)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.