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