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