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