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)(17,18,23,27,22,28,21,37)(19,29,31,42,32,24,38,43)(20,33,35,45,36,26,39,25)(30,41,48,40,34,46,47,44)(1,2)(3,6)(4,5)(7,8)(9,10)(11,15)(12,14)(13,16)(17,19,22,32)(18,24,28,29)(20,34,36,30)(21,38,23,31)(25,44,45,40)(26,46,33,41)(27,43,37,42)(35,47,39,48)(9,11)(10,13)(12,16)(14,15)(17,20,22,36)(18,25,28,45)(19,30,32,34)(21,35,23,39)(24,40,29,44)(26,37,33,27)(31,47,38,48)(41,42,46,43)(2,5)(6,8)(11,16)(13,15)(17,20)(18,26)(19,30)(21,39)(22,36)(23,35)(24,41)(25,27)(28,33)(29,46)(31,48)(32,34)(37,45)(38,47)(40,43)(42,44) involution — undirected(1,3,4,7)(2,6,5,8)(10,14)(13,15)(17,21,22,23)(18,27,28,37)(19,31,32,38)(20,35,36,39)(24,42,29,43)(25,26,45,33)(30,47,34,48)(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.