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