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