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