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