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