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