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