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