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