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