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