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