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