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