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