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