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