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