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