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