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