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