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