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