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