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