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