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)(17,18,22,23)(19,25,27,20)(21,29,31,24)(26,28,30,32)(33,34)(35,37)(36,44)(38,42)(39,41)(40,46)(43,47)(45,48)(2,7)(5,15)(8,11)(9,13)(17,19,22,27)(18,20,23,25)(21,30,31,26)(24,32,29,28)(33,34,38,42)(35,37,41,39)(36,40,46,44)(43,45,48,47)(3,12)(4,14)(8,11)(9,13)(18,23)(20,25)(24,29)(28,32)(33,35,38,41)(34,39,42,37)(36,43,46,48)(40,47,44,45)(1,3,6,12)(2,8,7,11)(4,10,14,16)(5,13,15,9)(17,18)(19,20)(21,24)(22,23)(25,27)(26,28)(29,31)(30,32)(33,36)(34,40)(35,43)(37,45)(38,46)(39,47)(41,48)(42,44)(1,4,6,14)(2,9,7,13)(3,10,12,16)(5,11,15,8)(17,20)(18,19)(21,28)(22,25)(23,27)(24,26)(29,30)(31,32)(33,34)(35,39)(36,40)(37,41)(38,42)(43,47)(44,46)(45,48)(1,5)(2,10)(3,13)(4,11)(6,15)(7,16)(8,14)(9,12)(17,21,22,31)(18,24,23,29)(19,26,27,30)(20,28,25,32)(33,37,38,39)(34,41,42,35)(36,45,46,47)(40,48,44,43)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.