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