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