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