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