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