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