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