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)(11,16)(12,14)(13,15)(17,18,22,25)(19,23,28,32)(20,21,24,31)(26,27,30,29)(2,6)(7,8)(11,12)(14,16)(17,19,22,28)(18,23,25,32)(20,30,24,26)(21,29,31,27)(1,3,5,4)(2,7,6,8)(9,11,13,12)(10,14,15,16)(17,20,21,25,22,24,31,18)(19,26,29,23,28,30,27,32)(9,12,13,11)(10,14,15,16)(17,21,22,31)(18,24,25,20)(19,27,28,29)(23,30,32,26)(1,4,5,3)(2,8,6,7)(10,15)(14,16)(18,25)(19,28)(20,24)(27,29)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.