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