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