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