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