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