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