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