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