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