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