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