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)(17,18)(19,20)(21,24)(22,30)(23,26)(25,31)(27,32)(28,29)(34,40)(36,45)(41,46)(42,47)(1,2,7,4)(3,8,5,10)(6,9,14,12)(11,15,13,16)(17,18)(19,20)(21,24)(22,25)(23,26)(27,28)(29,32)(30,31)(33,34)(35,41)(36,38)(37,47)(39,40)(42,43)(44,46)(45,48)(1,3,7,5)(2,8,4,10)(6,11,14,13)(9,15,12,16)(17,19,23,21)(18,24,26,20)(22,27,31,29)(25,32,30,28)(33,35,39,44)(34,41,40,46)(36,42,45,47)(37,38,43,48)(1,4,7,2)(3,8,5,10)(6,12,14,9)(11,15,13,16)(17,20,23,24)(18,19,26,21)(22,28,31,32)(25,27,30,29)(33,36)(34,38)(35,42)(37,46)(39,45)(40,48)(41,43)(44,47)(1,5,7,3)(2,8,4,10)(6,13,14,11)(9,15,12,16)(17,21,23,19)(18,24,26,20)(22,27,31,29)(25,28,30,32)(33,37)(34,42)(35,38)(36,46)(39,43)(40,47)(41,45)(44,48)(1,6,7,14)(2,9,4,12)(3,11,5,13)(8,15,10,16)(17,22,23,31)(18,25,26,30)(19,27,21,29)(20,28,24,32)(33,38)(34,36)(35,43)(37,44)(39,48)(40,45)(41,42)(46,47)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.