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