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