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