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