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)(19,24,29,30)(20,28,31,32)(21,25,22,27)(1,3,4,8)(2,5,6,7)(9,10,12,15)(11,13,16,14)(17,19)(18,24)(20,27)(21,28)(22,32)(23,29)(25,31)(26,30)(10,13)(11,16)(14,15)(17,20,21,24,23,31,22,30)(18,19,27,32,26,29,25,28)(2,6)(5,7)(17,21,23,22)(18,25,26,27)(19,28,29,32)(20,24,31,30)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.