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