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