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