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