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