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