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