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