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