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