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