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