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