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