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