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