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