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