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