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