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