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