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