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