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