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