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