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