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