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