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