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