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