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