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