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