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