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