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