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