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