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