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