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