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