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