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