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