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