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