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