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