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