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