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