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