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