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