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)(19,26,20,23)(21,24,30,29)(27,32,28,31)(33,34,39,43)(35,38,37,41)(36,42,47,40)(44,46,45,48)(2,4)(7,9)(8,12)(15,16)(17,19,22,20)(18,23,25,26)(21,27,30,28)(24,31,29,32)(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)(17,18,22,25)(19,23,20,26)(21,29,30,24)(27,32,28,31)(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)(17,18)(19,23)(20,26)(21,24)(22,25)(27,31)(28,32)(29,30)(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)(17,20,22,19)(18,23,25,26)(21,28,30,27)(24,31,29,32)(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)(18,24)(19,27)(20,28)(22,30)(23,31)(25,29)(26,32)(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.