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