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