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