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