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