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