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