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)(33,34,37,41)(35,38,43,47)(36,39,44,40)(42,45,48,46)(2,6)(4,12)(7,13)(8,9)(11,16)(14,15)(17,19)(18,24)(20,28)(21,29)(22,31)(23,30)(25,27)(26,32)(33,35,37,43)(34,38,41,47)(36,42,44,48)(39,45,40,46)(1,3,5,10)(2,7,9,14)(4,11,12,16)(6,13,8,15)(17,20,23,18)(19,28,30,24)(21,25,22,26)(27,31,32,29)(34,39)(36,44)(38,45)(40,41)(42,48)(46,47)(3,10)(7,14)(11,16)(13,15)(17,21,23,22)(18,25,20,26)(19,29,30,31)(24,27,28,32)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.