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