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