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