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