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