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