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