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