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