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