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