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