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