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