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