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