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