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