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