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