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