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