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