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