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