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