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