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