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