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