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