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