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