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