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