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