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