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