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