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