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