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