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