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