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)(17,18,22,26)(19,23,24,32)(20,29,30,28)(21,27,31,25)(1,3,6,14,7,4,8,16)(2,9,11,10,12,5,13,15)(17,19)(18,23)(20,27)(21,28)(22,24)(25,30)(26,32)(29,31)(1,4,7,3)(2,10,12,15)(5,13,9,11)(6,16,8,14)(17,20,21,23,22,30,31,32)(18,24,25,29,26,19,27,28)(1,5,8,10,7,9,6,15)(2,3,13,16,12,4,11,14)(19,24)(20,30)(23,32)(28,29)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.