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