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