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