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