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