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