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