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