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