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