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