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