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