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