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