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