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