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