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