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