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