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