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