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