One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,10,13,7)(4,14)(5,8)(6,9)(11,15,12,16)(17,18)(19,25)(20,28)(21,23)(22,26)(24,30)(27,32)(29,31)(33,34,36,40,37,39,45,47)(35,41,43,48,42,38,44,46)(1,3,6,13)(2,7,9,10)(4,11,5,12)(8,15,14,16)(17,19,21,27)(18,22,23,31)(20,29,30,26)(24,32,28,25)(33,35,37,42)(34,38,39,41)(36,44,45,43)(40,48,47,46)(1,4,6,5)(2,8,9,14)(3,11,13,12)(7,15,10,16)(18,23)(22,31)(24,28)(25,32)(34,39)(35,42)(40,47)(43,44)(1,5,6,4)(2,8,9,14)(3,12,13,11)(7,15,10,16)(18,23)(22,31)(24,28)(25,32)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.