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