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