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