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