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