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