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