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