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