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