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