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