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