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