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