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