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