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