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