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