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