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